The Chemistry subject consists of scientific theories, facts, laws, abstract concepts, methods, experimentation's, calculations, atomic theory, line spectra, orbital, hybridization, bonding, formulae, balancing ionic equations, calculations, and stoichiometry and mind maps based on evidences. Chemistry subject grabs two kinds of knowledge, namely declarative knowledge and procedural knowledge. Chemical knowledge is learned at three levels: microscopic, macroscopic, symbolic representations and the link between all the three levels. A teacher should facilitate all the levels of knowledge for the better understanding. If a student finds difficulty in understanding at any one level that influences the conflict in learning the entire concept. The following web-links and YouTube channel helps in making learning connections among all the three levels ( microscopic, macroscopic, symbolic representations) for better understanding. Both stud...
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